ST Life.augmented


Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472
  • active Active

The STEVAL-CCA023V1 demonstration board is designed as an evaluation platform for the TS472 low noise microphone preamplifier with 2.0 V bias and active low standby mode.

The board supports customization of the testing conditions, allowing the gain of the TS472 device to be adjusted, or an electret microphone to be biased either externally or using the TS472 builtin 2.0 V bias voltage.

pdf Download
Data Brief

Key Features

  • Low noise: 10 nV / √ Hz typ. equivalent input noise @ F=1 kHz
  • Fully differential input/output
  • 2.2 V to 5.5 V single supply operation
  • Low power consumption @20 dB: 1.8 mA
  • Fast start up time @ 0dB: 5 ms typ.
  • Low distortion: 0.1% typ.
  • 40 kHz bandwidth @ -3 dB and adjustable gain
  • Active low standby mode function (1μA max)
  • Low noise 2.0 V microphone bias output
  • Available in flip-chip ECOPACK® package and QFN24 4x4 mm
  • ESD protection (2 kV)
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0878: Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472
1.1 73 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for STEVAL-CCA023V1 board
1.0 112 KB

Bill of Materials

Description Version Size
BOM for STEVAL-CCA023V1 board
1.0 3 KB

Schematic Pack

Description Version Size
Board schematics for STEVAL-CCA023V1 board
1.0 45 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-CCA023V1ActiveTS472IQT-33Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Feedback Form
Customer Feedback